AllTruckData
Comparison · 6×4 lorry · long haul at 19.3 t

Scania R 660 B6x4, lorry (2021–2023) vs Scania S 770 B6x4

Scania R 660 B6x4, lorry (2021–2023)

2021–2023 · 485 kW
36.8l/100 km
median; 34.1–41.9 across 194 declared configurations

Scania S 770 B6x4

2021–2023 · 566 kW
39.1l/100 km
median; 36.6–41.6 across 18 declared configurations
Scania R 660 B6x4, lorry (2021–2023) and Scania S 770 B6x4 side by side
SpecificationScania R 660 B6x4, lorry (2021–2023)Scania S 770 B6x4
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration6×4Declared6×4Declared
Registered new2021–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power485 kWDeclared566 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI D, EURO VI ERegisteredEURO VI ERegistered
Gross vehicle weight30,000–36,000 kgRegisteredmedian 30,000 kg, over 11 registrations31,000 kgRegistered
Kerb weight10,429–17,427 kgRegisteredmedian 15,505 kg, over 11 registrations19,595 kgRegistered
Wheelbase5,700–6,300 mmRegisteredmedian 6,100 mm, over 11 registrations6,100 mmRegistered
Overall length8,350–10,800 mmRegisteredmedian 10,040 mm, over 11 registrations9,800 mmRegistered
Overall height3,890–4,000 mmRegisteredmedian 4,000 mm, over 8 registrations3,980 mmRegistered
Declared fuel, long haul36.8 l/100 km Declaredmedian; 34.1–41.9 l/100 km across 194 declared configurations39.1 l/100 km Declaredmedian; 36.6–41.6 l/100 km across 18 declared configurations
CO₂ per tonne-km49.95 g Declaredmedian; 46.3–56.8 g53.05 g Declaredmedian; 49.63–56.36 g

Fuel and CO₂: long haul at 19.3 t, 2022 declarations.

What the numbers actually say

There is 2.3 l/100 km between these two (6.2%). That is inside the 10% tolerance of declared figures, so on fuel alone neither is the better choice: at 120,000 km a year and an assumed £1.40 a litre the gap would be about 2,760 litres a year (£3,864). The declared figures for one of them alone span 7.8 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

R 660 B6x4, lorry (2021–2023) full specificationS 770 B6x4 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 660 B6x4, lorry (2021–2023)44,160 litres
£61,824 at the assumed price
Scania S 770 B6x446,920 litres
£65,688 at the assumed price
At 120,000 km a year and an assumed £1.40 a litre; the price is an assumption, not one we track.